package com.heima.behavior.service.impl;


import com.alibaba.fastjson.JSON;
import com.heima.behavior.service.ApBehaviorEntryService;
import com.heima.behavior.service.ApLikesBehaviorService;
import com.heima.common.consatnts.article.HotArticleConstants;
import com.heima.common.exception.CustException;
import com.heima.model.behavior.dtos.LikesBehaviorDTO;
import com.heima.model.behavior.pojos.ApBehaviorEntry;
import com.heima.model.behavior.pojos.ApLikesBehavior;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.mess.app.NewBehaviorDTO;
import com.heima.model.threadlocal.AppThreadLocalUtils;
import com.heima.model.user.pojos.ApUser;
import com.mongodb.client.result.DeleteResult;
import lombok.extern.slf4j.Slf4j;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ZSetOperations;
import org.springframework.stereotype.Service;

import java.util.Date;

/**
 * author by itheima
 *
 * @Date 2022/3/8
 * Description
 */
@Service
@Slf4j
public class ApLikeBehaviorServiceImpl implements ApLikesBehaviorService {
    @Autowired
    ApBehaviorEntryService apBehaviorEntryService;
    @Autowired
    MongoTemplate mongoTemplate;
    @Autowired
    RabbitTemplate rabbitTemplate;

    @Override
    public ResponseResult like(LikesBehaviorDTO dto) {
// 1. 校验参数
        if (dto == null) {
            CustException.cust(AppHttpCodeEnum.DATA_NOT_EXIST, "数据不存在");
        }
//     点赞需要登录
        ApUser loginUser = AppThreadLocalUtils.getUser();
        if (loginUser == null) {
            CustException.cust(AppHttpCodeEnum.NEED_LOGIN, "需要先登录");
        }
//     校验文章id不能为空     使用注解校验
//      校验点赞方式 只能是0 或 1   使用注解校验
// 2. 根据当前登录用户id查询行为实体对象
        ApBehaviorEntry apBehaviorEntry = apBehaviorEntryService.findByUserIdOrEquipmentId(loginUser.getId(), null);
// 3. 如果是点赞操作  判断是否已经点过赞
        if (dto.getOperation() == 0) {
            Query query = Query.query(Criteria.where("articleId").is(dto.getArticleId()).and("entryId").is(apBehaviorEntry.getId()));
            ApLikesBehavior apLikes = mongoTemplate.findOne(query, ApLikesBehavior.class);
            if (apLikes != null) {
                CustException.cust(AppHttpCodeEnum.DATA_EXIST, "请勿重复点赞");
            }
            // 4. 没有点过赞则 向mongo点赞集合中 添加点赞数据
            ApLikesBehavior apLikesBehavior = new ApLikesBehavior();
            apLikesBehavior.setEntryId(apBehaviorEntry.getId());
            apLikesBehavior.setArticleId(dto.getArticleId());
            apLikesBehavior.setOperation((short) 0);
            apLikesBehavior.setOperation(dto.getOperation());
            apLikesBehavior.setCreatedTime(new Date());
            mongoTemplate.save(apLikesBehavior);

        }
        // 5. 如果是取消点赞操作  在mongo点赞集合中 删除对应点赞数据
        if (dto.getOperation() == 1) {
            Query query = Query.query(Criteria.where("articleId").is(dto.getArticleId()).and("entryId").is(apBehaviorEntry.getId()));
            mongoTemplate.remove(query, ApLikesBehavior.class);
        }
        //添加文章点赞-发送消息
        NewBehaviorDTO behaviorDTO = new NewBehaviorDTO();
        behaviorDTO.setType(NewBehaviorDTO.BehaviorType.LIKES);
        behaviorDTO.setArticleId(dto.getArticleId());
        behaviorDTO.setAdd(dto.getOperation().intValue()==0?1:-1);
        rabbitTemplate.convertAndSend(HotArticleConstants.HOT_ARTICLE_SCORE_BEHAVIOR_QUEUE, JSON.toJSONString(behaviorDTO));
        log.info("成功发送 点赞行为消息 == 》{}",behaviorDTO);
        return ResponseResult.okResult();
    }

}

